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5
8
4
2
6
5
1
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3
8
4
6
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7
1
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5
1
4
9
3
4
1
9
5
3
2
3
8
7
9
9
5
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5
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6
5
8
1
6
4
2
6
3
8
5
7
1
8
5
3
1
1
4
9
4
9
5
3
9
3
8
7
5
2
9
1
2
3
4
5
6
7
8
9
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